Peng's condo was a great find. I reserved quite late, a week ahead, and definitely lucked out. Plenty of room, comfortable furniture, washer/dryer, fast WiFi, two excellent a/c units, immaculately clean. Given Bangkok's various loosely-connected transportation systems, this listing was perfect: 4 minute walk to canal boat; 9 minutes to MRT and just past it to air train (slower with luggage, obviously); 14 minutes to BTS. (Stored value cards totally worth it for any stay longer than two days). Peng was super-responsive on a couple of routine issues (e.g. slow drain) and provided great recommendations.
Condo management seems poised to crack down (big printed signs posted that daily/weekly rentals are illegal); please be very polite to them.
HIGHLY RECOMMENDED. I hope to return.